Shield or auxiliary tire



l.. 0. LEGAN.

SHIELD 0R Auxlu'AaY me.

APPLICATION FILEDVJUNEZQJ 1920.-

1,41 2, 1 22. .Patented Apr. 11, 1922.

73 /2 16 o o o l oo 6 i5 O 70 wventoz Qa/C.

Y ttozneg p UNITED STATES PATE LUSK O. LEG-AN, 0F SAN ANTONIO, TEXAS.

SHIELD on AUXILIARY TIRE.

Specicatonvof Letters Patent, Patentgd ADL. 11" 1922.;-

Applicaon filed June'ze, 1920, serial No. 392,865" p.

To all whom t mdf] concer/a Be it known that I, LUsK O.V LEGAN, a'

a wheel, toafford protect-ion .therefor *and means to prevent the wheelfrom slipping under traction efforts.

It is Yan object of the invention to pro# vide a tire 'of that sort ofnovel and advantageous formation, having a substantially flat treadportion, which can be placed on and removed from a wheel with `facilitywithout jacking up the wheel'.

More specically the invention is directed to formation of the tire insuch manner that it will be strong, its parts easily assembled inmanufacture, and vgenerally be efficient and satisfactory in use. c

Among the features of the invention are those relating to the means forgiving antislipping characteristics to the tread, and

means for bracingand attaching the tread to the part that immediately iskassociated with the peripheral Vportion of a wheel.

When read in connection withV the description herein, the formation andarrangement of parts of the invention will be apparent from theaccompanying drawings,forming part hereof, wherein embodiments oftheinvention are disclosed, for purposes of illustration. f

Y While the disclosures herein exemplify what now are Yconsidered to bepreferable embodiments of the invention, it is to be understood that itis not theintention Vto be limited necessarily thereto in interpretation of claims, as modifications and adapta- 7 tions within the limitsof the claims can be made without departing from the nature of* theinvention. i

Llke reference-characters refer to corresponding parts in ings, ofwhich- 'V n Fig. 1 is a sidey elevation of the shield or auxiliary tireof this invention associated with a wheel; i

the vviews of they-draw-L Fig. 2 is a view of'a brace before bending Ythe lugs; and f Fig. v3 is a transverse sectional ViewA show@ ingthebrace in place. v c "i VHaving more particularreference Ito thedrawings, 1.0V designates a segmental shoe forming part of a section ofYthe shieldor auxiliary tire. lt is arcuate 'circumferen' tially andtransversely to conformsubstanf `tially to the shape Iof the tire orother peripheral portion of thefwheel on which it is placedfandpreferably'it is made of "stout sheet'm'etal. f if The shoel has on itsoutside a treadthat 1s substantially straigiht transversely and curvedcircumferentially yin an` arccorresponding to that ofthe' shoe-'it isaso,-

Nr porties.

calledj'lat tread. The tread includes a' plate 11, Awhich contacts withand 'is secured to` the shoe ina manner hereinafter described, and anouter plate 12. The Vtwo plates are secured together by welding,riveting, or in any other suitable manner.

Before being associated with'plate 11, the

`plate 12 is crimped transversely at intervals to afford ribs 13, whichprotrude from the tread surface, to prevent or reduce liability. ofslippingV of the wheel under Y traction effort.

The. shoe and` treadmay be secured vtogether, if desired, bywelding -atplaces of contact, by rivets, or in any other suitable manner. They maybe connected solely by substantially triangular bracesl located atintervalson eachside in the angles formed by the shoe and plate 11, .orthey may be as-v sociated together in both ways. The bracesi support themarginal portions of the tread and maintain the tread in a positionsubstantially parallel to the axis of thev wheel.

Asuitable form of means for bracing. and holding together the shoe andtread is shown by Figs. 2 and 3. The brace there shown is ofstout metal,andit has bendable.lugs 18 extendlng from its shoe and. tread abuttingsides. For such a brace the plate ll and shoe are formed with slots oropenings into which the lugs are passed and bent down A shield or tireincluding sections formed as hereinbefore described is adaptedparticularly for use on a Wheel equipped with pneumatic or other tiresthat are arcuate in cross section. A sulicient number of suchV sectionsare provided to extend around and to cover the tread portion of thetire, except that they should be of such length that there will be asmall space betweenv the abutting ends. That is to allow for variance ofair pressure in and for compression of a pneumatic tire under theinfluence of load, for compression of a cushion tire or the like, andfor expansion and contraction of metal resulting froinchanges intemperature.

The braces adjacent to the ends of the secs tions have on each sidethereof hooks 19 or other suitable means for connection with flexiblemembers 20, such as chains, which are disposed from one side to theother around the tire or the like,the rim, and the felly of the wheel,tohold the sections in place. Preferably the Vsections for a given wheelare of such dimensions circumferentially that their ends abut oppositeto the telly ends of the wheel-spokes, and the chain of each end isdisposed and drawn tightly against the opposite side of the adjacentspoke. Thus the chains of each abutting pair of ends cross, as seen inFig. l, and by that arrangement the sections are prevented from slippingcircumferentially on the wheel.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A tire section comprising a shoe arranged to seat on a peripheralportion of a wheel, a substantially fiat tread on said shoe, andmetallic braces interposed between said shoe and tread supportingmarginal portions of the latter, said braces having lugs extend ingthrough said shoe and tread and' bent down Hat thereagainst. c

2. A tire section comprisingia shoe arranged to seat on a peripheralportion of a wheel, an inner plate on said Shoe, metallic bracesinterposed between said shoe and plate supporting marginal portions ofthe latter, said braces having lugs extendingl through said shoe andplate and bent down vflat thereagainst, and an outer tread-plate securedto said inner plate overthe'y bracelugs associated therewith.

3. A tire section comprising a shoe. ar-v ranged to seat on a peripheralportion oi" a wheel, `a substantially fiat tread member onl said shoeincluding an inner plate and an outer plate attached thereto havingantislipping protuberances extending therefrom,

and metallic braces'between ,said shoe and inner plate supportingmarginal `portions of the latter, lsaid braces `having lugs extendingthrough said shoe and inner plate, some o'which are bent dowir flatagainst theinner plate under said 'outer plate.

In testimony whereof I affix mv signature. i

LUsK o. LEGAN.

